Foaming insulation paper heating control system

Abstract

The utility model discloses a foaming insulation paper heating control system, which relates to the technical field of flat wire motor stator insulation and comprises a PLC (programmable logic controller), a direct-current power supply or an alternating-current power supply, a motor stator part, a contactor and a temperature sensor. According to the utility model, accurate temperature rise control of the winding copper wire is realized through PID control, and the heating process is ensured to meet the foaming condition of the foaming insulation paper, so that the foaming insulation paper can achieve better foaming, adhesion and curing effects, the process requirements are met, the production efficiency and the product quality are improved, the production cost is reduced, the energy waste is reduced, and the product quality is improved. The energy utilization efficiency is improved, the economic benefits of enterprises are improved, environmental pollution can be reduced, and the requirement of green production is met; the device can be adjusted according to different production requirements and process parameters, and has high flexibility and adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to flat wire motor stator insulation technical field, concretely is a kind of foamed insulation paper heating control system. BACKGROUND

[0002] In the electrical insulation field in the prior art, foamed insulation paper is widely used due to its excellent insulation performance and mechanical strength. Studies have shown that temperature has a significant impact on the thermal performance of insulation paper. As the temperature rises, the thermal resistance of the insulation paper will increase, and the thermal conductivity will decrease. This means that temperature control is crucial to the performance of insulation paper during the foaming process. However, traditional tunnel furnace heating and induction heating cannot accurately control the temperature curve during the foaming process, resulting in unsatisfactory foaming results and failing to meet the process requirements.

[0003] Although the application number CN202222384348.8 is a kind of flat wire motor stator semi-finished product insulation fixing structure, foamed insulation paper is used, but the foamed insulation paper is not precisely temperature-controlled and heated, so the foaming process of the foamed insulation paper cannot be precisely controlled. Traditional tunnel furnace heating, induction heating and other heating methods cannot achieve the temperature rise process curve that meets the foaming conditions of insulation paper, resulting in unsatisfactory foaming results and failing to meet the process requirements. SUMMARY

[0004] The utility model aims at providing a kind of foamed insulation paper heating control system to solve the problem that traditional tunnel furnace heating, induction heating and other heating methods cannot achieve the temperature rise process curve that meets the foaming conditions of insulation paper in the above background technology, resulting in unsatisfactory foaming results and failing to meet the process requirements.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of foamed insulation paper heating control system, including the PLC controller, power supply and motor stator portion that are electrically connected in sequence;The PLC controller is electrically connected with display screen, and is provided with input interface simultaneously;The motor stator portion includes the stator core of cylindrical setting and is provided with the stator winding of three phases in its inner side, and foamed insulation paper is arranged between the copper wire of the stator winding and the stator core;The stator winding is electrically connected with the power supply.

[0006] Preferably, the power supply uses a direct current power supply or a three-phase alternating current power supply.

[0007] Preferably, the direct current power supply uses a programmable direct current power supply and is electrically connected with the PLC controller.

[0008] Preferably, the three-phase alternating current power supply uses a three-phase alternating current constant current power supply;The motor stator portion is provided with a temperature sensor, and the temperature sensor is electrically connected with the PLC controller.

[0009] Preferably, the temperature sensor adopts an infrared temperature sensor.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] 1、The utility model discloses a PLC controller and through PID control technology can realize the accurate temperature control of winding copper wire, ensure that the heating process meets the foaming condition of foaming insulation paper, thereby improve the foaming effect, and then make the foaming insulation paper can reach better foaming, adhesion and solidification effect, satisfy the process demand, and improve production efficiency and product quality, reduce production cost simultaneously, improve the economic benefit of enterprise,

[0012] 2、Compared with traditional tunnel furnace heating, induction heating and other heating modes, the utility model can more accurately control the heating process, reduce energy waste and improve energy utilization efficiency, help reduce environmental pollution and meet the requirements of green production.

[0013] 3、The application of PLC controller makes the whole heating process can realize automatic control, reduces manual operation, improves production efficiency and safety, and through the accurate control of foaming process, can improve the product quality of insulation paper and reduce the product quality problem caused by uneven foaming or incomplete solidification.

[0014] 4、Through the temperature calculation of PLC controller or temperature sensor, the temperature of copper wire and the voltage, current value of power supply can be monitored in real time, and real-time adjustment is carried out through the PLC controller, so that the stability and reliability of the heating process are ensured.

[0015] 5、The utility model can be adjusted according to different production requirements and process parameters, and has strong flexibility and adaptability. DRAWINGS

[0016] Figure 1 It is the structure detection flow diagram of the utility model;

[0017] Figure 2 It is the detection schematic diagram of using direct current power supply;

[0018] Figure 3 It is the detection schematic diagram of using alternating current power supply;

[0019] Figure 4 It is the temperature curve schematic diagram;

[0020] Figure 5 It is the motor stator part schematic diagram;

[0021] In the figure: PLC controller-1, direct current power supply-2, motor stator part-3, stator core-31, stator winding-32, foamed insulation paper-33, three-phase alternating current power supply-4, temperature sensor-5. DETAILED DESCRIPTION

[0022] In order to make the technical personnel in the art better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application are described clearly and completely below in combination with the drawings and specific embodiments.

[0023] Please refer to Figures 1-5 , Figure 1 It is a structure detection flowchart of the present application; Figure 2 It is a detection schematic diagram using direct current power supply; Figure 3 It is a detection schematic diagram using alternating current power supply; Figure 4 It is a temperature curve schematic diagram; Figure 5 It is a motor stator part schematic diagram.

[0024] The present application provides a foamed insulation paper heating control system, which controls and heats the foamed insulation paper by using the energization heating mode of the stator winding copper wire of the motor, so as to make the foamed insulation paper achieve good foaming, adhesion and curing effects; direct current or alternating current can be used to energize and heat the stator winding.

[0025] Embodiment 1:

[0026] The direct current power supply is used to energize and heat the three-phase stator winding, which comprises a PLC controller 1, a direct current power supply 2 and a motor stator part 3 connected in sequence.

[0027] The PLC controller 1 is provided with an input interface for setting a temperature curve, and is further electrically connected with a display screen for displaying the temperature curve, and the PLC controller 1 is also electrically connected with the direct current power supply 2, and the PLC controller 1 has a PID adjustment function for controlling the output use of the direct current power supply 2.

[0028] The direct current power supply 2 adopts a programmable direct current power supply, which can output corresponding voltage and current to the motor stator part 3 according to the PID adjustment signal of the PLC controller 1; the direct current power supply 2 simultaneously transmits the output current and voltage values to the PLC controller 1 in real time; the PLC controller 1 can calculate the resistance value and the corresponding temperature value in real time through the received current and voltage values.

[0029] The motor stator part 3 comprises a cylindrical stator core 31, the inner side of the stator core 31 is provided with three-phase stator windings 32, and the copper wires of the stator windings 32 and the stator core 31 are provided with foamed insulation paper 33.

[0030] The direct current power supply 2 and the stator winding 32 are electrically connected, so that the three-phase winding of the stator winding 32 is energized, so that the three-phase winding reaches the effect of energized heating.

[0031] The voltage output by the direct current power supply 2 is Ua, the current is Ia, the resistance value calculated by the PLC controller 1 is R, the calculation method is R=Ua / Ia, and the temperature value calculated by the PLC controller 1 is T, the calculation method is T=R(k-T0) / R0-k.

[0032] In use, the temperature curve is set in advance by the PLC controller 1, and then the PID adjustment function of the PLC controller 1 outputs corresponding signals to the direct current power supply 2 according to the set temperature curve, and the direct current power supply 2 outputs corresponding current and voltage to the stator winding 32 according to the PID adjustment signal, so that the stator winding 32 is heated due to energization, and at the same time of heating, the real-time voltage and current values of the direct current power supply 2 are transmitted to the PLC controller 1, the PLC controller 1 calculates the corresponding resistance value and temperature value in real time, the PLC controller 1 generates a temperature curve in real time and compares it with the set temperature curve while displaying it in real time through the display screen, and the difference between the temperature curve and the set temperature curve is controlled by the PID adjustment function to control the output of the direct current power supply 2 corresponding voltage and current, so that the temperature change curve of the stator winding 32 is consistent with the set temperature curve, so as to ensure that the foamed insulation paper 33 achieves good foaming, adhesion and curing effect.

[0033] Embodiment 2:

[0034] A three-phase alternating current power supply is used to energize and heat the stator winding; including a PLC controller 1, a three-phase alternating current power supply 4 and a motor stator portion 3 which are electrically connected in sequence, and a temperature sensor 5 is further arranged on the motor stator portion 3, and the temperature sensor 5 is further electrically connected with the PLC controller 1.

[0035] The PLC controller 1 is provided with an input interface for setting a temperature curve, and is further electrically connected with a display screen for displaying the temperature curve, and the PLC controller 1 is further electrically connected with the three-phase alternating current power supply 4, and the PLC controller 1 has a PID adjustment function for controlling the output of the three-phase alternating current power supply 4.

[0036] The motor stator portion 3 includes a cylindrical stator core 31, three-phase stator windings 32 are arranged on the inner side of the stator core 31, and foamed insulation paper 33 is arranged between the copper wires of the stator windings 32 and the stator core 31; the stator windings 32 are electrically connected with the three-phase alternating current power supply 4.

[0037] The three-phase alternating current power supply 4 adopts a three-phase alternating current constant current power supply, which can keep the current constant after the motor stator part 3 is energized and heated to a set temperature, so that the heating temperature of the stator winding 32 can be controlled to be constant, thereby ensuring that the foamed insulation paper 33 achieves good foaming, adhesion and curing effects.

[0038] The temperature sensor 5 adopts an infrared temperature sensor, which detects the heating temperature of the stator winding 32 in real time through infrared detection, and transmits the detected temperature data to the PLC controller 1 in real time.

[0039] In use, the PLC controller 1 pre-sets a temperature curve, and then the PID adjustment function of the PLC controller 1 outputs corresponding signals to the three-phase alternating current power supply 4 according to the set temperature curve, the three-phase alternating current power supply 4 outputs corresponding current and voltage to the stator winding 32 according to the PID adjustment signal, so that the stator winding 32 heats up due to energization, and then the temperature sensor 5 detects the temperature of the stator winding 32 and transmits the temperature data to the PLC controller 1, the PLC controller 1 generates a temperature curve of the temperature data of the temperature sensor 5 and compares it with the set temperature curve, and controls the three-phase alternating current power supply 4 to output corresponding voltage and current through the PID adjustment function, so that the temperature change curve of the stator winding 32 coincides with the set temperature curve, so as to ensure that the foamed insulation paper 33 achieves good foaming, adhesion and curing effects.

[0040] The utility model discloses a PLC controller and through PID control technology can realize accurate temperature control of winding copper wire, ensure that the heating process meets the foaming condition of foamed insulation paper, thereby improve foaming effect, and then make foamed insulation paper can reach better foaming, adhesion and curing effect, satisfy the process demand, and improve production efficiency and product quality, reduce production cost simultaneously, improve the economic benefit of enterprise, compared with traditional tunnel furnace heating, induction heating and other heating mode, the utility model can control the heating process more accurately, reduce energy waste, improve energy utilization efficiency, help reduce environmental pollution, meet the requirement of green production, the application of PLC controller makes the whole heating process can realize automatic control, reduce manual operation, improve production efficiency and safety, and through accurate control foaming process simultaneously, can improve the product quality of insulation paper, reduce the product quality problem that leads to foaming uneven or curing incomplete, through voltage current detector and temperature sensor, can real -time monitoring copper wire's temperature and power's voltage and current value, through the real -time adjustment of PLC controller, ensure the stability and reliability of heating process, the utility model discloses can adjust according to different production demand and process parameter, has stronger flexibility and adaptability.

[0041] Although the embodiments of the present application have been shown and described, it is apparent that the described embodiments are only part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, it can be understood by those skilled in the art that, without departing from the principles and spirits of the present application, all other embodiments obtained by various changes, modifications, replacements and variations of these embodiments without creative labor belong to the protection scope of the present application.

Claims

1. A foam insulation paper heating control system, characterized by: The invention comprises a PLC controller (1), a power supply and a motor stator part (3) which are electrically connected in sequence; the PLC controller (1) is electrically connected to a display screen and is provided with an input interface; the motor stator part (3) comprises a cylindrical stator core (31) and a three-phase stator winding (32) is passed through the inner side of the cylindrical stator core, and foamed insulating paper (33) is provided between the copper wires of the stator winding (32) and between the stator core (31); the stator winding (32) is electrically connected to the power supply.

2. The foam insulation paper heating control system according to claim 1, characterized in that: The power supply adopts a direct current power supply (2) or a three-phase alternating current power supply (4).

3. The foam insulation paper heating control system according to claim 2, characterized in that: The DC power supply (2) is a programmable DC power supply and is electrically connected to the PLC controller (1).

4. The foam insulation paper heating control system according to claim 2, characterized in that: The three-phase AC power supply (4) adopts a three-phase AC constant current power supply; the motor stator part (3) is provided with a temperature sensor (5), and the temperature sensor (5) is electrically connected to the PLC controller (1).

5. The foam insulation paper heating control system according to claim 4, characterized in that: The temperature sensor (5) is an infrared temperature sensor.

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